Combustion plate assembly, combustor and gas water heater

Abstract

The utility model provides a combustion plate assembly, a combustor and a gas water heater, the combustion plate assembly comprises a combustion plate main body, the lower surface of the combustion plate main body is used for being in butt joint with an air outlet of an air duct assembly, and the upper surface of the combustion plate main body is used for being in butt joint with a combustion chamber; wherein a water collecting groove is formed in the upper surface of the combustion plate main body and used for collecting condensate water located on the upper surface of the combustion plate main body. In this way, the burning plate assembly solves the problem that in the prior art, condensate water generated after burning of a burner affects burning efficiency.

Description

Technical Field

[0001] The utility model relates to the field of burners, and in particular, to a combustion plate assembly, a burner and a gas water heater. Background Art

[0002] A gas water heater is a water heater that burns gas to generate heat and then heats water. After the gas burns, it usually generates gases such as CO, CO 2 、H 2 O.

[0003] Currently, due to the special nature of its function, in the process of the burner working in a gas water heater with a water-cooled burner structure, on the one hand, condensed water will be generated on the surface of the combustion plate. When the generated condensed water is excessive, the condensed water will flow into the air duct assembly, thereby affecting the gas mixing effect; on the other hand, the high-temperature flue gas generated after the gas burns contacts the heat exchange components (heat exchanger, water-cooled combustion chamber, etc.), and the H 2 O in the gas will condense into liquid water, and the condensed water will flow onto the surface of the combustion plate and into the air duct assembly, thus ultimately affecting the combustion efficiency of the gas water heater. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a combustion plate assembly, a burner and a gas water heater to solve the problem that the condensed water generated after the burner burns in the prior art affects the combustion efficiency.

[0005] To achieve the above object, according to one aspect of the utility model, there is provided a combustion plate assembly, a burner and a gas water heater. The combustion plate assembly includes: a combustion plate main body, the lower surface of the combustion plate main body is used to dock with the air outlet of the air duct assembly, and the upper surface of the combustion plate main body is used to dock with the combustion chamber; wherein, a water collecting groove is arranged on the upper surface of the combustion plate main body to collect the condensed water located on the upper surface of the combustion plate main body.

[0006] Further, the water collecting groove includes a first groove body part, the first groove body part is strip-shaped, and the first groove body part extends along the extending direction of the combustion plate main body.

[0007] Further, there are multiple first groove body parts, and the multiple first groove body parts are arranged at intervals in sequence along the width direction of the combustion plate main body.

[0008] Further, a drain hole is arranged on the combustion plate main body, the drain hole is communicated with the water collecting groove, the combustion plate main body has a drain side wall, the drain side wall extends along the extending direction of the combustion plate main body, and the drain hole is arranged at one end of the drain side wall; along the direction close to the drain hole, the depth of the first groove body part gradually increases.

[0009] Further, the water collecting groove includes a second groove body part, and the second groove body part is arranged along the circumferential direction of the combustion plate main body.

[0010] Further, the water collecting tank includes a first tank body part which is strip-shaped and extends along the extending direction of the main body of the combustion plate, and a second tank body part which is arranged around the first tank body part and communicates with the first tank body part.

[0011] Further, drain holes are arranged on the main body of the combustion plate, and the drain holes communicate with the second tank body part; and / or, the second tank body part faces the inner wall surface of the combustion chamber.

[0012] Further, there are a plurality of first tank body parts which are arranged in parallel and are sequentially spaced along the width direction of the main body of the combustion plate; wherein, the distance between two adjacent first tank body parts is a first preset distance; the distance between the two outermost first tank body parts among the plurality of first tank body parts and the side walls of the second tank body parts adjacent to and parallel to them respectively is a second preset distance; the first preset distance is greater than the second preset distance.

[0013] Further, the first preset distance is twice the second preset distance.

[0014] Further, the depth of the water collecting tank is one-tenth to one-third of the depth of the main body of the combustion plate.

[0015] Further, the combustion plate assembly further includes two waterway connectors, and a plurality of water cooling channels are arranged on the main body of the combustion plate, and both ends of each water cooling channel communicate with the two waterway connectors respectively; wherein, the water collecting tank is located above the waterway connectors.

[0016] Further, according to a second aspect of the present utility model, a burner is further provided, which includes an air duct assembly, a combustion chamber and a combustion plate assembly.

[0017] Further, according to a third aspect of the present utility model, a gas water heater is further provided.

[0018] Applying the technical solution of the present utility model, the combustion plate assembly of the present utility model includes: a main body of the combustion plate, the lower surface of the main body of the combustion plate is used for docking with the air outlet of the air duct assembly, and the upper surface of the main body of the combustion plate is used for docking with the combustion chamber; wherein, a water collecting tank is arranged on the upper surface of the main body of the combustion plate to collect the condensed water on the upper surface of the main body of the combustion plate. In this way, the combustion plate assembly provided by the present utility model avoids the problem that too much condensed water will flow into the air duct assembly during the operation of the burner, and ultimately affects the combustion efficiency of the gas water heater, by arranging a water collecting tank on the main body of the combustion plate to collect the condensed water generated after the flame on the upper surface of the main body of the combustion plate is cooled and the condensed water generated when the high-temperature flue gas contacts the heat exchange component. Description of the Drawings

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0020] Figure 1 An exploded view of the overall structure of an embodiment of a burner including a combustion plate assembly according to the present utility model is shown;

[0021] Figure 2 Shown according to Figure 1 An exploded view of the overall structure of the combustion plate assembly of the burner shown;

[0022] Figure 3 Shown according to Figure 1 A top view of the combustion plate assembly of the burner shown;

[0023] Figure 4 Shown according to Figure 3 A cross-sectional view of the combustion plate assembly of the burner shown;

[0024] Figure 5 Shown according to Figure 3 A front view of the combustion plate assembly of the burner shown; and

[0025] Figure 6 Shown according to Figure 5 A cross-sectional view of the combustion plate assembly of the burner shown.

[0026] Among them, the above-mentioned drawings include the following reference numerals:

[0027] 10, combustion plate main body; 20, air duct assembly; 30, combustion chamber; 40, water connection joint;

[0028] 101, water collecting tank; 1011, first tank part; 1012, second tank part;

[0029] 102, drain hole; 103, drain side wall; 104, water cooling channel;

[0030] 201, air outlet. Detailed implementation manners

[0031] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] As Figures 1 to 6As shown in the figure, the combustion plate assembly of the present utility model includes: a combustion plate main body 10, the lower surface of the combustion plate main body 10 is used to dock with the air outlet 201 of the air duct assembly 20, and the upper surface of the combustion plate main body 10 is used to dock with the combustion chamber 30; wherein, a water collecting groove 101 is arranged on the upper surface of the combustion plate main body 10 to collect the condensed water located on the upper surface of the combustion plate main body 10.

[0033] The combustion plate assembly provided by the present utility model avoids the problem that excessive condensed water will flow into the air duct assembly during the operation of the burner, which ultimately affects the combustion efficiency of the gas water heater, by arranging the water collecting groove 101 on the combustion plate main body 10 to collect the condensed water generated after the flame on the upper surface of the combustion plate main body is cooled and the condensed water generated when the high-temperature flue gas contacts the heat exchange component.

[0034] As Figures 1 to 4 shown, by arranging the water collecting groove 101 on the combustion plate main body 10 to collect the condensed water generated after the flame on the upper surface of the combustion plate main body is cooled and the condensed water generated when the high-temperature flue gas contacts the heat exchange component, the problem that excessive condensed water will flow into the air duct assembly during the operation of the burner, ultimately affecting the combustion efficiency of the gas water heater, is avoided.

[0035] As Figure 2 and Figure 3 shown, the water collecting groove 101 includes a first groove body part 1011, the first groove body part 1011 is strip-shaped, and the first groove body part 1011 extends along the extending direction of the combustion plate main body 10.

[0036] Specifically, there are multiple first groove body parts 1011, and the multiple first groove body parts 1011 are arranged at intervals in sequence along the width direction of the combustion plate main body 10. By arranging multiple first groove body parts 1011, the collection of condensed water can be effectively improved.

[0037] Specifically, the number of the first groove body parts 1011 is set according to the width direction of the combustion plate main body 10.

[0038] Optionally, the number of the first groove body parts 1011 can be four, five or more.

[0039] As Figure 1 shown, a drain hole 102 is arranged on the combustion plate main body 10, the drain hole 102 is communicated with the water collecting groove 101, the combustion plate main body 10 has a drain side wall 103, the drain side wall 103 extends along the extending direction of the combustion plate main body 10, and the drain hole 102 is arranged at one end of the drain side wall 103; along the direction close to the drain hole 102, the depth of the first groove body part 1011 gradually increases.

[0040] As Figure 4As shown, the first trough part 1011 is arranged such that its depth gradually increases in the direction close to the drain hole 102. This is set according to the flow characteristics of the liquid, which is beneficial to improving the drainage efficiency of the condensed water, and thus enhancing the combustion performance of the burner.

[0041] As Figure 3 shown, the water collecting trough 101 includes a second trough part 1012, and the second trough part 1012 is arranged along the circumferential direction of the combustion plate main body 10.

[0042] Specifically, the first trough part 1011 arranged in the middle of the water collecting trough 101 is mainly for collecting the condensed water generated on the combustion plate main body 10 after the flame is cooled. The second trough part 1012 arranged around the first trough part 1011 and located at the periphery of the water collecting trough 101 is mainly for collecting the condensed water generated when the high-temperature flue gas contacts the inner surface of the combustion chamber 30. Finally, it flows out of the burner through the drain hole 102.

[0043] Specifically, the water collecting trough 101 includes a first trough part 1011. The first trough part 1011 is strip-shaped and extends along the extending direction of the combustion plate main body 10. The second trough part 1012 is arranged around the first trough part 1011 and is communicated with the first trough part 1011.

[0044] For the convenience of the outflow of the condensed water, as Figures 3 to 6 shown, a drain hole 102 is arranged on the combustion plate main body 10, and the drain hole 102 is communicated with the second trough part 1012; and / or, the second trough part 1012 faces the inner wall surface of the combustion chamber 30.

[0045] Specifically, the condensed water in the first trough part 1011 in the water collecting trough 101 flows through the second trough part 1012 to the drain hole 102.

[0046] As Figure 3 and Figure 4 shown, there are multiple first trough parts 1011. The multiple first trough parts 1011 are arranged in parallel and are sequentially spaced along the width direction of the combustion plate main body 10. Among them, the distance between two adjacent first trough parts 1011 is a first preset distance; the distance between the two outermost first trough parts 1011 among the multiple first trough parts 1011 and the side walls of the second trough part 1012 adjacent to and parallel to each of them is a second preset distance; the first preset distance is greater than the second preset distance.

[0047] Specifically, the first preset distance is twice the second preset distance.

[0048] Optionally, the depth of the water collecting trough 101 is one-tenth to one-third of the depth of the combustion plate main body 10.

[0049] As Figure 3 、Figure 4 and Figure 6 As shown in Figure 6 , the burner plate assembly further includes two waterway connectors 40. A plurality of water cooling channels 104 are provided on the burner plate body 10, and both ends of each water cooling channel 104 are respectively communicated with the two waterway connectors 40; wherein, the water collecting tank 101 is located above the waterway connectors 40.

[0050] As Figure 6 shown in Figure 6 , the water collecting tank 101 is arranged above the burner plate body 10 to collect condensed water, and the water cooling channels 104 are arranged in the middle of the burner plate body 10 to introduce cold water.

[0051] Specifically, the water cooling channels 104 are correspondingly arranged directly below the first tank body part 1011 of the water collecting tank 101.

[0052] As Figure 3 shown in Figure 3 , one end of the waterway connector 40 is set as the water inlet, and the other end is set as the drain outlet. One of the two waterway connectors 40 is the water inlet waterway connector 40, and the other is the drain waterway connector 40.

[0053] Optionally, the number of the water cooling channels 104 is set according to the number of the water collecting tanks 101.

[0054] Optionally, the number of the water cooling paths can be four, five or more.

[0055] The present utility model further provides a burner, which includes an air duct assembly 20, a combustion chamber 30 and a burner plate assembly.

[0056] The present utility model further provides a gas water heater.

[0057] Specifically, by providing the waterway connectors 40 and the water cooling channels 104, the beneficial effects of increasing the water flow rate of cold water are as follows:

[0058] First, due to the increase in the cooling capacity of cold water, the gaseous H2O in the flue gas of the burner will inevitably condense into liquid H2O, which can greatly reduce the temperature of the components in contact with the flue gas of the burner.

[0059] Second, due to the liquefaction of H2O, a large amount of latent heat is released during the phase change, and the heat exchange components absorb the heat, which can greatly improve the efficiency of the burner.

[0060] Third, to prevent the temperature of the burner plate body 10 from continuously rising during combustion, the present utility model is provided with water cooling channels 104 in the burner plate body 10, and the flowing cold water is used to cool the burner plate body 10 to prevent the occurrence of flame flashback due to too high temperature, which can further stabilize the flame state and thus improve the performance of the burner.

[0061] IV. Since the combustion plate at low temperature reduces the flame temperature, decreases the generation of thermal NOx, further reduces the NOx emissions, and reduces air pollution.

[0062] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0063] The combustion plate assembly in the present utility model includes a combustion plate main body 10. The lower surface of the combustion plate main body 10 is used to dock with the air outlet 201 of the air duct assembly 20, and the upper surface of the combustion plate main body 10 is used to dock with the combustion chamber 30. Among them, a water collecting groove 101 is provided on the upper surface of the combustion plate main body 10 to collect the condensed water on the upper surface of the combustion plate main body 10. In this way, the combustion plate assembly provided by the present utility model avoids the problem that too much condensed water will flow into the air duct assembly during the operation of the burner, which will ultimately affect the combustion efficiency of the gas water heater, by providing a water collecting groove on the combustion plate main body to collect the condensed water generated after the flame is cooled on the upper surface of the combustion plate main body and the condensed water generated when the high-temperature flue gas contacts the heat exchange component.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0065] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0066] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0067] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used here to describe the spatial positional relationship of one device or feature shown in the drawings with respect to other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0068] In addition, it should be noted that the use of terms such as "first", "second" etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statement, the above terms have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0069] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A combustion plate assembly, characterized in that: include: A combustion plate body (10), wherein the lower surface of the combustion plate body (10) is used to connect with the air outlet (201) of the air duct assembly (20), and the upper surface of the combustion plate body (10) is used to connect with the combustion chamber (30); Wherein, a water collecting trough (101) is provided on the upper surface of the combustion plate body (10) to collect condensed water located on the upper surface of the combustion plate body (10).

2. The combustion plate assembly according to claim 1, characterized in that The water collecting trough (101) comprises a first trough body portion (1011), the first trough body portion (1011) is in a strip shape, and the first trough body portion (1011) extends along the extension direction of the combustion plate body (10).

3. The combustion plate assembly according to claim 2, characterized in that There are a plurality of the first groove body parts (1011), and the plurality of the first groove body parts (1011) are arranged in sequence and at intervals along the width direction of the combustion plate body (10).

4. The combustion plate assembly according to claim 3, characterized in that The combustion plate body (10) is provided with a drainage hole (102), the drainage hole (102) is connected to the water collecting trough (101), the combustion plate body (10) has a drainage side wall (103), the drainage side wall (103) extends along the extension direction of the combustion plate body (10), and the drainage hole (102) is arranged at one end of the drainage side wall (103); along the direction approaching the drainage hole (102), the depth of the first groove body (1011) gradually increases.

5. The burner plate assembly according to claim 1, characterized in that The water collecting trough (101) comprises a second trough body portion (1012), and the second trough body portion (1012) is arranged along the circumference of the combustion plate body (10).

6. The burner plate assembly according to claim 5, characterized in that The water collecting trough (101) includes a first trough body portion (1011), the first trough body portion (1011) is strip-shaped and extends along the extension direction of the combustion plate body (10), and the second trough body portion (1012) is arranged around the first trough body portion (1011) and is connected to the first trough body portion (1011).

7. The burner plate assembly according to claim 6, characterized in that The combustion plate body (10) is provided with a drainage hole (102), and the drainage hole (102) is connected to the second groove body (1012); and / or the second groove body (1012) is opposite to the inner wall surface of the combustion chamber (30).

8. The burner plate assembly according to claim 6, characterized in that There are a plurality of first trough bodies (1011), and the plurality of first trough bodies (1011) are arranged in parallel and spaced in sequence along the width direction of the combustion plate body (10); wherein the distance between two adjacent first trough bodies (1011) is a first preset distance; the distance between two first trough bodies (1011) located on the outside of the plurality of first trough bodies (1011) and the side walls of the second trough bodies (1012) adjacent to and parallel to each other is a second preset distance; the first preset distance is greater than the second preset distance.

9. The burner plate assembly according to claim 8, characterized in that The first preset distance is twice the second preset distance.

10. A combustion plate assembly according to any one of claims 1 to 9, characterised in that The depth of the water collecting groove (101) is one tenth to one third of the depth of the combustion plate body (10).

11. A combustion plate assembly according to any one of claims 1 to 9, characterised in that The combustion plate assembly also includes two water channel joints (40), and a plurality of water cooling channels (104) are provided on the combustion plate body (10), and both ends of each of the water cooling channels (104) are respectively connected to the two water channel joints (40); wherein the water collecting tank (101) is located above the water channel joints (40).

12. A burner, comprising an air duct assembly (20), a combustion chamber (30) and a combustion plate assembly, characterized in that: The combustion plate assembly is the combustion plate assembly according to any one of claims 1 to 11.

13. A gas water heater, comprising a burner, characterized in that: The burner is the burner according to claim 12.

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